Do you not think the TCS parent hasn't also heard this scenario over and over? Do you think you're like the first one ever to have mentioned it?

Do you not think that I am aware that people who believe in extremist ideologies are capable of making excuses for not following the extreme consequences of their extremist ideologies?

But this is just the same as a religious person giving excuses for why the empirical consequences of his beliefs are the same whether his beliefs are true or false.

You have two options:

1) Embrace the extreme consequences of your extreme beliefs.
2) Make excuses for not accepting the extreme consequences. But then you will do the same things that other people do, like using baby gates, and then you have nothing to teach other people.

I should have said also that the stair-falling scenario and other similar scenarios are just excuses for people not to think about TCS.

You are the one making excuses, for not accepting the extreme consequences of your extremist beliefs.